CN101208922A - 正交频分多路复用系统中的基于有效信噪比的定时控制 - Google Patents

正交频分多路复用系统中的基于有效信噪比的定时控制 Download PDF

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Publication number
CN101208922A
CN101208922A CNA2006800227362A CN200680022736A CN101208922A CN 101208922 A CN101208922 A CN 101208922A CN A2006800227362 A CNA2006800227362 A CN A2006800227362A CN 200680022736 A CN200680022736 A CN 200680022736A CN 101208922 A CN101208922 A CN 101208922A
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CN
China
Prior art keywords
error rate
current time
ofdm
packet error
benchmark
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Pending
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CNA2006800227362A
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English (en)
Chinese (zh)
Inventor
斯里坎特·贾亚拉曼
徐豪
南宫浚
迈克尔·约翰·曼根
彼得·J·布莱克
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Qualcomm Inc
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Qualcomm Inc
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Filing date
Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of CN101208922A publication Critical patent/CN101208922A/zh
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2662—Symbol synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2689—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation
    • H04L27/2695—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation with channel estimation, e.g. determination of delay spread, derivative or peak tracking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L2001/0092—Error control systems characterised by the topology of the transmission link
    • H04L2001/0093—Point-to-multipoint
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Noise Elimination (AREA)
CNA2006800227362A 2005-04-29 2006-04-26 正交频分多路复用系统中的基于有效信噪比的定时控制 Pending CN101208922A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/119,240 2005-04-29
US11/119,240 US7564775B2 (en) 2005-04-29 2005-04-29 Timing control in orthogonal frequency division multiplex systems based on effective signal-to-noise ratio

Publications (1)

Publication Number Publication Date
CN101208922A true CN101208922A (zh) 2008-06-25

Family

ID=36869927

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2006800227362A Pending CN101208922A (zh) 2005-04-29 2006-04-26 正交频分多路复用系统中的基于有效信噪比的定时控制

Country Status (11)

Country Link
US (1) US7564775B2 (ja)
EP (1) EP1875699B1 (ja)
JP (1) JP2008539677A (ja)
KR (1) KR100922245B1 (ja)
CN (1) CN101208922A (ja)
AT (1) ATE456235T1 (ja)
DE (1) DE602006011871D1 (ja)
ES (1) ES2339970T3 (ja)
MY (1) MY141949A (ja)
TW (1) TWI309521B (ja)
WO (1) WO2006118958A1 (ja)

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CN108541061A (zh) * 2017-03-02 2018-09-14 三星电子株式会社 用于lte定位的增强参考信号时间差的方法和设备

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US20080232237A1 (en) * 2007-03-19 2008-09-25 Legend Silicon Corp. Method and apparatus for robust timing recovery of ofdm system for fast fading channels
US7881392B2 (en) * 2007-03-30 2011-02-01 Hong Kong Applied Science And Technology Research Institute Co., Ltd. OFDM/OFDMA timing synchronization using non-consecutive pilot subcarrier assignment
US7830984B2 (en) * 2007-03-30 2010-11-09 Hong Kong Applied Science And Technology Research Institute Co., Ltd. OFDM/OFDMA channel estimation
KR101410697B1 (ko) * 2008-03-20 2014-07-02 삼성전자주식회사 수신기 및 상기 수신기의 동작 제어 방법
US8693442B2 (en) * 2008-09-22 2014-04-08 Blackberry Limited Multi-site MIMO cooperation in cellular network
US8724715B2 (en) 2011-02-17 2014-05-13 Massachusetts Institute Of Technology Rateless and rated coding using spinal codes
US9160399B2 (en) 2012-05-24 2015-10-13 Massachusetts Institute Of Technology System and apparatus for decoding tree-based messages
US9270412B2 (en) * 2013-06-26 2016-02-23 Massachusetts Institute Of Technology Permute codes, iterative ensembles, graphical hash codes, and puncturing optimization
US10432272B1 (en) 2018-11-05 2019-10-01 XCOM Labs, Inc. Variable multiple-input multiple-output downlink user equipment
US10659112B1 (en) 2018-11-05 2020-05-19 XCOM Labs, Inc. User equipment assisted multiple-input multiple-output downlink configuration
US10756860B2 (en) 2018-11-05 2020-08-25 XCOM Labs, Inc. Distributed multiple-input multiple-output downlink configuration
US10812216B2 (en) 2018-11-05 2020-10-20 XCOM Labs, Inc. Cooperative multiple-input multiple-output downlink scheduling
KR20210087089A (ko) 2018-11-27 2021-07-09 엑스콤 랩스 인코퍼레이티드 넌-코히어런트 협력 다중 입출력 통신
US11063645B2 (en) 2018-12-18 2021-07-13 XCOM Labs, Inc. Methods of wirelessly communicating with a group of devices
US10756795B2 (en) 2018-12-18 2020-08-25 XCOM Labs, Inc. User equipment with cellular link and peer-to-peer link
CN109495409B (zh) * 2018-12-29 2021-06-25 京信通信系统（中国）有限公司 信道估计方法、装置、无线接收设备和存储介质
US11330649B2 (en) 2019-01-25 2022-05-10 XCOM Labs, Inc. Methods and systems of multi-link peer-to-peer communications
US10756767B1 (en) 2019-02-05 2020-08-25 XCOM Labs, Inc. User equipment for wirelessly communicating cellular signal with another user equipment
US10735057B1 (en) 2019-04-29 2020-08-04 XCOM Labs, Inc. Uplink user equipment selection
US10686502B1 (en) 2019-04-29 2020-06-16 XCOM Labs, Inc. Downlink user equipment selection
US11411778B2 (en) 2019-07-12 2022-08-09 XCOM Labs, Inc. Time-division duplex multiple input multiple output calibration
US11411779B2 (en) 2020-03-31 2022-08-09 XCOM Labs, Inc. Reference signal channel estimation
CN113225274B (zh) * 2021-04-14 2023-11-03 西安宇飞电子技术有限公司 一种针对快速移动的多径信道模型测量方法

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102197621A (zh) * 2008-08-25 2011-09-21 阿威尔有限公司 基于分组的ofdm系统中的传输psd上限
CN108541061A (zh) * 2017-03-02 2018-09-14 三星电子株式会社 用于lte定位的增强参考信号时间差的方法和设备
CN108541061B (zh) * 2017-03-02 2021-03-30 三星电子株式会社 用于lte定位的增强参考信号时间差的方法和设备

Also Published As

Publication number Publication date
KR20080007486A (ko) 2008-01-21
US7564775B2 (en) 2009-07-21
EP1875699A1 (en) 2008-01-09
TWI309521B (en) 2009-05-01
TW200711406A (en) 2007-03-16
ATE456235T1 (de) 2010-02-15
MY141949A (en) 2010-07-30
KR100922245B1 (ko) 2009-10-15
ES2339970T3 (es) 2010-05-27
EP1875699B1 (en) 2010-01-20
US20060245347A1 (en) 2006-11-02
WO2006118958A1 (en) 2006-11-09
DE602006011871D1 (de) 2010-03-11
JP2008539677A (ja) 2008-11-13

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